There's a good chance you've seen a weird, disturbing, or downright offensive commercial on TV before. They usually act as good lessons on what audiences don't want to see in between episodes of their favorite shows.
Or sometimes, they're simply products of their time. In this list, these commercials aired at one point, but definitely couldn't be made today (or for an English-speaking audience).
Strong content warning for the subject matter in some of these commercials.